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Vishay General Semiconductor - Diodes Division SMB10J15AHM3/H
- Part No.:
- SMB10J15AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMB10J15AHM3/H.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,057
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Product details
Overview
SMB10J15AHM3/H from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for high-energy surge protection on power and signal lines. It features a 15 V stand-off voltage (VWM), 16.7–18.5 V breakdown voltage (VBR) at 1 mA, 24.4 V clamping voltage (VC) at 41 A peak pulse current, and 1000 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive power supply rails and industrial sensor interfaces.
For engineers reviewing the SMB10J15AHM3/H datasheet, SMB10J15AHM3/H pinout, SMB10J15AHM3/H application, or SMB10J15AHM3/H equivalent, key selection criteria include clamping performance under 41 A surge, AEC-Q101 qualification for automotive use, halogen-free RoHS compliance (HM3 suffix), and thermal resistance (RθJA = 72 °C/W) for PCB layout validation.
Technical Context
This TVS diode operates as a unidirectional shunt protector, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response to transients. Its low incremental surge resistance ensures minimal voltage overshoot during 10/1000 µs surges up to 1000 W, while the 15 V stand-off supports compatibility with 12 V automotive systems and 15 V industrial logic rails.
The SMB10J15AHM3/H meets MSL Level 1 per J-STD-020 (260 °C peak reflow), uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and is qualified to AEC-Q101 - confirming suitability for under-hood and chassis-mounted electronics where reliability under thermal cycling and mechanical stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - maximum continuous reverse operating voltage before clamping begins; matches 12 V nominal automotive systems with margin. |
| VBR (min/max) | 16.7 V / 18.5 V at 1 mA - defines reliable turn-on threshold across temperature and unit variation. |
| VC @ IPPM | 24.4 V at 41 A - clamped voltage during full-rated 10/1000 µs surge; limits downstream IC stress to safe levels. |
| PPPM | 1000 W - peak pulse power handling capability; enables robust protection against ISO 7637-2 Pulse 1/2a/5a transients. |
| RθJA | 72 °C/W - junction-to-ambient thermal resistance; informs minimum copper pad area (0.2" × 0.2") required for sustained operation. |
| IFSM | 100 A - non-repetitive forward surge rating; supports fault-clearing in DC power line applications. |
| Polarity | Unidirectional - cathode marked with band; blocks reverse conduction, ideal for DC rail protection. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to protected line's lower-potential side (e.g., ground or return path) in unidirectional configuration. |
| Cathode | Clamping node / surge sink | Connected to protected line's higher-potential side (e.g., 12 V rail); absorbs transient energy into ground path. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock - required for engine control, body electronics, and ADAS modules. |
| Halogen-free & RoHS-compliant (HM3) | Meets EU RoHS Directive 2011/65/EU and IEC 61249-2-21; eliminates brominated flame retardants for safer end-of-life processing. |
| Glass passivated junction | Enhances moisture resistance and long-term stability of VBR and leakage; critical for high-humidity under-hood environments. |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 260 °C peak without preconditioning - simplifies manufacturing integration. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage exposure to downstream components; improves system-level immunity to fast transients. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and inductive switching spikes per ISO 7637-2. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between power rail and chassis ground. Use Value: Limits clamped voltage to 24.4 V during 41 A surge, preventing damage to 36 V-rated DC-DC converters and microcontrollers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation PLCs. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS on 0–10 V or 4–20 mA signal lines. Use Value: Sub-ns response and 1 µA max leakage at 15 V preserve signal integrity and measurement accuracy. |
| Telecom DC Power Input Protection | Consumer Power Adapter Output Protection |
Use Scenario: Guarding PoE-powered equipment inputs against surges induced by nearby lightning strikes. IC Role / Device Role / Timing Role: Primary-stage TVS on 48 V DC input before DC-DC regulation. Use Value: 1000 W PPPM rating handles high-energy transients without degradation, supporting EN 61000-4-5 Level 4 compliance. | Use Scenario: Securing USB-C PD adapter 20 V output rails against ESD and cable-connect transients. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to common ground on regulated output. Use Value: 24.4 V VC ensures connected devices (e.g., laptops) remain within absolute maximum ratings during surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15AHE3/A | Same VWM (15 V), VBR (16.7–18.5 V), and PPPM (1000 W); E3 suffix indicates commercial-grade RoHS, not AEC-Q101 or halogen-free. | Lacks AEC-Q101 qualification and halogen-free certification; suitable for non-automotive industrial or consumer use only. | Select SMBJ15AHE3/A when automotive qualification is unnecessary and cost optimization is prioritized. |
| SAC15 | Lower PPPM (600 W), same VWM (15 V); SOD-123FL package (smaller footprint, higher RθJA ≈ 120 °C/W). | Not rated for 1000 W surges; limited to lower-energy transients in space-constrained portable designs. | Choose SAC15 only if board space is critical and surge threat level is below ISO 7637-2 Pulse 5a. |
Compared with SMBJ15AHE3/A and SAC15, SMB10J15AHM3/H uniquely combines AEC-Q101 qualification, halogen-free construction, and full 1000 W surge capability in the SMB footprint - making it the only option validated for demanding automotive power rail protection without derating or thermal compromise.
Availability
SMB10J15AHM3/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power supply designs requiring stable component supply, long-term lifecycle support, and certified reliability.
Supply support for SMB10J15AHM3/H includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on high-reliability and automotive-grade solutions.
The SMB10JxxA series targets high-power-density transient suppression in harsh environments, engineered specifically for AEC-Q101 compliance, automated SMT assembly, and robust clamping performance in automotive and industrial power systems.
FAQ
What is the clamping voltage of SMB10J15AHM3/H at its rated peak pulse current?
The SMB10J15AHM3/H has a maximum clamping voltage (VC) of 24.4 V at its rated peak pulse current (IPPM) of 41 A, measured using the standardized 10/1000 µs double-exponential surge waveform. This value ensures protected circuits remain within safe operating limits during high-energy transients, and is confirmed in Vishay's Document Number 88422, page 2, under "UNIDIRECTIONAL" electrical characteristics.
Is SMB10J15AHM3/H qualified for automotive applications?
Yes, SMB10J15AHM3/H is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet (Document Number 88422, page 1, FEATURES section). The HM3 suffix denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction - making SMB10J15AHM3/H suitable for under-hood and chassis-mounted automotive electronics including body control modules and ADAS sensors.
What does the "HM3" suffix mean in SMB10J15AHM3/H?
The "HM3" suffix in SMB10J15AHM3/H indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Per Vishay's ordering information (page 3), HM3 parts meet JESD 201 Class 2 whisker resistance and are supplied on 7" or 13" tape-and-reel. This distinguishes SMB10J15AHM3/H from E3 (commercial RoHS) or HE3 (AEC-Q101 but not halogen-free) variants.
What is the thermal resistance of SMB10J15AHM3/H, and how does it affect PCB layout?
SMB10J15AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 72 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value directly dictates minimum copper area needed to maintain TJ ≤ 150 °C under worst-case power dissipation - underscoring the necessity of adhering to Vishay's recommended pad layout (page 5) to avoid thermal runaway during repetitive surge events.
How does SMB10J15AHM3/H differ from bidirectional TVS diodes like SMB8J15CA?
SMB10J15AHM3/H is unidirectional and optimized for DC rail protection with 1000 W PPPM, whereas SMB8J15CA is bidirectional with 800 W PPPM and symmetric clamping. The unidirectional design of SMB10J15AHM3/H provides lower leakage (<1 µA at 15 V) and tighter VBR tolerance - critical for 12 V automotive systems where reverse conduction must be blocked. SMB8J15CA suits AC-coupled or floating signal lines where polarity reversal may occur.
SMB10J15AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 41A
- Power - Peak Pulse:
- 1000W (1kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMB10J15AHM3/H FAQ
1.How can I place an order for SMB10J15AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMB10J15AHM3/H on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SMB10J15AHM3/H reliable?
The price and inventory of SMB10J15AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMB10J15AHM3/H is usually 5 days.
3.What payment methods are accepted for SMB10J15AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMB10J15AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMB10J15AHM3/H?
SMB10J15AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMB10J15AHM3/H order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SMB10J15AHM3/H?
For technical support, including SMB10J15AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMB10J15AHM3/H requirements.
6.How does Aetrix verify that SMB10J15AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMB10J15AHM3/H products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SMB10J15AHM3/H meets industry standards.
7.What is the process for return or replacement of SMB10J15AHM3/H?
All SMB10J15AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMB10J15AHM3/H, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SMB10J15AHM3/H part is unused and in its original packaging.
Return procedure for SMB10J15AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMB10J15AHM3/H Tags
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